Muffler Data Chart

*Jakee* · 03-19-2008, 12:29 PM

I found this and wanted to share.

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Because I wanted a quiet, straight-thru designed muffler, I decided on the Borla Pro XS.

**Turdle** · 03-19-2008, 12:37 PM

Thanks Jakee!

I stuck this in 2 places-

that didn't sound right-
I stickied it-

Afboy143 · 03-19-2008, 05:23 PM

Stuck it in 2 places eh? Very nice....

Jakee, you're the sh*t for this. Props

What kind of car/truck was tested in this?

*MustangAndy* · 03-19-2008, 07:49 PM

Quote:

Originally Posted by Afboy143

What kind of car/truck was tested in this?

Who knows. We've got the same chart over here in Mustang Land and have been asking that question for over a year. Post 4 on this thread has the same second picture Jakee posted.

And I'm warning ya'll now - This site don't censor. Just look at some of the avatars in other threads

http://www.moddedmustangs.com/forums...parisions.html

-Andy
D.J.O.R. Netzhauptmann

Afboy143 · 03-19-2008, 08:21 PM

Quote:

Originally Posted by MustangAndy

Who knows. We've got the same chart over here in Mustang Land and have been asking that question for over a year. Post 4 on this thread has the same second picture Jakee posted.

And I'm warning ya'll now - This site don't censor. Just look at some of the avatars in other threads

http://www.moddedmustangs.com/forums...parisions.html

-Andy
D.J.O.R. Netzhauptmann

Yeah, I ran a search on google. Looks like this chart is on every forum out there lol.

Price to horsepower comparison- looks like the Hooker Maxflow muffler wins. Cheap, quieter, and produces a nice amount of HP over the rest. I currently have a dynomax turbo which is a lot quieter than the ultraflow. I wonder how loud the maxflow is in comparison to my turbo....I know turbo mufflers dont flow that well, but they arent as loud as my old flowmaster. When running no cats and an offroad pipe with larger pipes, exhaust notes get a lot louder

EDIT: I just read this off summitracing about the Maxflow

As with all absorption-type silencers, the Maximum Flow mufflers will be most effective for sound control on lower-compression (8.5 to 1 and lower) motors with conservative camshafts and on applications using catalytic converters. The Maximum Flow mufflers flow either direction, allowing for easy installation.

Why is it better with Cats? Should I not even consider this?

Afboy143 · 03-19-2008, 09:01 PM

Something else I found

http://members.tripod.com/~racetruck/muffler.html

The Great Muffler Soundoff

*Jakee* · 03-19-2008, 10:11 PM

I found this at the turboMustangs forum and a few others. If I can find the data in a few places, and they all say the same, it's should be worth something.

I have no idea what car this was tested on.

Afboy143 · 03-19-2008, 11:38 PM

So do you think a straight-thru muffler like the MaxFlow really gives a approx 5 HP increase over the flowmaster on our trucks...or would this only really count on say a V8. The only reason I ask is our motors like backpressure.... but I wouldnt mind paying $50 for a muffler that will result in a 5hp gain to the wheels if it really would

*Jakee* · 03-20-2008, 02:01 PM

I'm skeptical about that. I doubt very seriously that you would see that sort of gain @ a naturally aspirated state. Maybe you would with a turbo or supercharger but not N/A.

Then again, you never know unless you try.

I liked the Borla Pro XS and I was told to go with this one a few years back but I didn't listen. I will try it now because I need a hi-flowing muffler with the turbo, and I want to be as quite as possible. I was actually impressed with the borla data. It looks like it hangs with the dynomax and I've heard good things about that mufflers flowing abilities.

Just remember, don't just look at the MAX HP; look at every RPM. Especially the RPM mostly used on your vehicle.

Xan · 03-20-2008, 05:41 PM

I've been preaching magnaflow and hooker mufflers for years and looks like i was right. I always liked flowtech (flowtech = holley) warlock mufflers but they are exspensive same with borla

aldive · 03-20-2008, 05:47 PM

Very interesting chart.

One question: what Flowmaster muffler did they use?

It seems that a lot of Flowmaster mufflers were somehow omitted.

*Jakee* · 03-21-2008, 11:26 AM

I believe these are only "Straight" thru designs or hi-flow. I'm not sure about flowmaster; I don't know much about them.

*CDW6212R* · 03-21-2008, 11:55 AM

Agreed Al, I'm leaning towards two 70 series mufflers.

*Makahveli* · 03-25-2008, 05:48 PM

I wish I knew how to read the chart

ktford · 04-05-2008, 04:39 PM

I changed my stock system from behind the pre-cats, I replaced it all with dual 2.25" including 2 str8 thru mufflers, then a Y into single 3" before the diff. It is a bit noisier but I've picked up about 3.5 m.p.g. which is pretty awesome.
I expect that will improve a fraction tomorrow as the two small exhaust leaks since installation in September as I performed the surgery on my back in my shed will be removed down at the local muffler shop.
Including the work tomorrow it'll have cost me about $250.oo as I already owned the mufflers from off of my previous Ford
Scotty

*toypaseo* · 04-05-2008, 04:57 PM

I have a Dynomax Ultraflo on my Paseo

I have the stock muffler on my Explorer

Afboy143 · 04-06-2008, 10:33 PM

Here's a little something I found tonight. Muffler flow chart.

Coming from

http://www.allfordmustangs.com/forum...lowmaster.html

Enjoy

Muffler Flow Comparison Chart
Shown below are competitive mufflers versus DynoMax Ultra-Flo SS and Race Magnum Welded models. For Powertech Index cold-flow testing, the pressure drop across the muffler is held at 20.3" H2O and the flow rate (scfm) is recorded.

MODEL (Flow Rate- @ 20.3" H2O) Muffler Inlet Size

+ Edelbrock 5501 492 scfm 2.25"
$ Flowmaster 42440 483 scfm 2.25"
Race Magnum Welded 17216 711 scfm 2.25"

+ Edelbrock 5511 579 scfm 2.50"
$ Flowmaster 42540 352 scfm 2.50"
Ultra-Flo SS 17263 1133 scfm 2.50"
Race Magnum Welded 17218 1000 scfm 2.50"
# Borla 40600 836 scfm 2.50"

+ Edelbrock 5505 708 scfm 3.00"
$ Flowmaster 43040 392 scfm 3.00"
Ultra-Flo SS 17296 2200 scfm 3.00"
Race Magnum Welded 17220 2200 scfm 3.00"
# Borla 40450 1400 scfm 3.00"
# Borla 40575 1100 scfm 3.00"

@ Edelbrock 5535 562 scfm 3.50"
$ Flowmaster 435409 576 scfm 3.50"
Ultra-Flo SS 17268 2200 scfm 3.50"
Race Magnum Welded 17224 2200 scfm 3.50"
# Borla 40615 854 scfm 3.50"

@ Edelbrock 5537 1400 scfm 4.00"
* Flowmaster 54040-10 634 scfm 4.00"
Race Magnum Welded 17225 2600 scfm 4.00"
# Borla 40741 1450 scfm 4.00"

+ Edelbrock General Application Series
@ Edelbrock Victor Series Race
$ Flowmaster 40 Series ( 2 Chamber)
* Flowmaster Delta Force Race Series
# Borla XR-1 Racing Series (Round or Oval)

*Jakee* · 05-18-2008, 10:18 AM

Someone showed me where these charts came from. Check it out.

http://www.mustang50magazine.com/tec...ler/index.html

Afboy143 · 05-26-2008, 08:03 PM

More info on the chart

http://forums.performanceyears.com/f...57&postcount=1

staubjw · 07-07-2008, 08:23 PM

Is it at all possible to run dual exhaust in a 2003 ford explorer eddie bauer 4.6L? Including two cats and mufflers? I Have had my explorer for a little over a year and i have been slowly adding things to help boost performance and HP. I have already purchased a set of headers and 1 high flow cat and 1 flowmaster 40, is it at all possible to install 2 cat and 2 mufflers? Im not sure if there is enough room under there, or if it would even be worth it. I was also given a set of underdrive pulleys form a friend of mine and they were origionally for a F-150. The packaging says that it will work for 4.6 thru 5.4 Liter. Will they work for my Explorer?

03-19-2008, 12:29 PM	#1
Jakee Elite Explorer Huntsville, Texas 01 Sport Join Date: May 2006 Posts: 2,814 Vehicle Specs (Original Poster)	Muffler Data Chart I found this and wanted to share. Because I wanted a quiet, straight-thru designed muffler, I decided on the Borla Pro XS. __________________ STS turbo charged

03-19-2008, 12:37 PM	#2
Turdle Old and in the way Humboldt, Kansas 2000 Mounty Join Date: Jun 2003 Posts: 23,742 Vehicle Specs	Thanks Jakee! I stuck this in 2 places- that didn't sound right- I stickied it- __________________ Jon 2000 Mountaineer Turdle-gone Vitamin D Wagon Sold also

03-19-2008, 05:23 PM	#3
Afboy143 Wannabe Elite Explorer Tampa,FL 1999 Ford Explorer Sport Join Date: Sep 2003 Posts: 2,611 Vehicle Specs	Stuck it in 2 places eh? Very nice.... Jakee, you're the sh*t for this. Props What kind of car/truck was tested in this? __________________ ...Mods: Black Magic Electric Fan 150, Diamond Cuts retrofitted with E46 BMW projectors, Full Custom 2.5" Flowmaster Super 40 Exhaust , Custom Spectre Intake w/ AMSOil Filter, Henson Performance 93 Octane Street Tune, Ported and Shafted TB, Full Header-Wrapped 2.5" Off-road Y-Pipe, C&L MAF, 1.5" Wheel Spacers, R1Concepts Drilled and Slotted Rotors

03-19-2008, 09:01 PM	#6
Afboy143 Wannabe Elite Explorer Tampa,FL 1999 Ford Explorer Sport Join Date: Sep 2003 Posts: 2,611 Vehicle Specs	Something else I found http://members.tripod.com/~racetruck/muffler.html The Great Muffler Soundoff __________________ ...Mods: Black Magic Electric Fan 150, Diamond Cuts retrofitted with E46 BMW projectors, Full Custom 2.5" Flowmaster Super 40 Exhaust , Custom Spectre Intake w/ AMSOil Filter, Henson Performance 93 Octane Street Tune, Ported and Shafted TB, Full Header-Wrapped 2.5" Off-road Y-Pipe, C&L MAF, 1.5" Wheel Spacers, R1Concepts Drilled and Slotted Rotors

03-19-2008, 10:11 PM	#7
Jakee Elite Explorer Huntsville, Texas 01 Sport Join Date: May 2006 Posts: 2,814 Vehicle Specs (Original Poster)	I found this at the turboMustangs forum and a few others. If I can find the data in a few places, and they all say the same, it's should be worth something. I have no idea what car this was tested on. __________________ STS turbo charged

03-19-2008, 11:38 PM	#8
Afboy143 Wannabe Elite Explorer Tampa,FL 1999 Ford Explorer Sport Join Date: Sep 2003 Posts: 2,611 Vehicle Specs	So do you think a straight-thru muffler like the MaxFlow really gives a approx 5 HP increase over the flowmaster on our trucks...or would this only really count on say a V8. The only reason I ask is our motors like backpressure.... but I wouldnt mind paying $50 for a muffler that will result in a 5hp gain to the wheels if it really would __________________ ...Mods: Black Magic Electric Fan 150, Diamond Cuts retrofitted with E46 BMW projectors, Full Custom 2.5" Flowmaster Super 40 Exhaust , Custom Spectre Intake w/ AMSOil Filter, Henson Performance 93 Octane Street Tune, Ported and Shafted TB, Full Header-Wrapped 2.5" Off-road Y-Pipe, C&L MAF, 1.5" Wheel Spacers, R1Concepts Drilled and Slotted Rotors

03-20-2008, 02:01 PM	#9
Jakee Elite Explorer Huntsville, Texas 01 Sport Join Date: May 2006 Posts: 2,814 Vehicle Specs (Original Poster)	I'm skeptical about that. I doubt very seriously that you would see that sort of gain @ a naturally aspirated state. Maybe you would with a turbo or supercharger but not N/A. Then again, you never know unless you try. I liked the Borla Pro XS and I was told to go with this one a few years back but I didn't listen. I will try it now because I need a hi-flowing muffler with the turbo, and I want to be as quite as possible. I was actually impressed with the borla data. It looks like it hangs with the dynomax and I've heard good things about that mufflers flowing abilities. Just remember, don't just look at the MAX HP; look at every RPM. Especially the RPM mostly used on your vehicle. __________________ STS turbo charged

03-20-2008, 05:41 PM	#10
Xan B Lincoln, NE 01, mountaneer Join Date: May 2007 Posts: 802 Vehicle Specs	I've been preaching magnaflow and hooker mufflers for years and looks like i was right. I always liked flowtech (flowtech = holley) warlock mufflers but they are exspensive same with borla

03-20-2008, 05:47 PM	#11
aldive Elite In Memoriam 1999 XLT Join Date: Jan 2001 Posts: 25,271 Vehicle Specs	Very interesting chart. One question: what Flowmaster muffler did they use? It seems that a lot of Flowmaster mufflers were somehow omitted. __________________ Al Franklin My truck My Quest for 30 RIP Al Franklin! 1947-2010. Gone but not forgotten! :(

03-21-2008, 11:26 AM	#12
Jakee Elite Explorer Huntsville, Texas 01 Sport Join Date: May 2006 Posts: 2,814 Vehicle Specs (Original Poster)	I believe these are only "Straight" thru designs or hi-flow. I'm not sure about flowmaster; I don't know much about them. __________________ STS turbo charged

03-21-2008, 11:55 AM	#13
CDW6212R Elite Explorer Knoxville, TN 98 Mountaineer A4WD Join Date: Jun 2004 Posts: 12,938 Vehicle Specs	Agreed Al, I'm leaning towards two 70 series mufflers. __________________ Don 91 Lincoln LSC/SE, 99/93 Explorer Limited 4WD, 98 AWD Mounty with 255/55/18's, big sway bars, and 12.75" x 1.25" rotors. Soon a BW4406, built trans, stereo and interior. The best thing that could help us all, is the Fair Tax Plan. Be American, Buy American (Manufacturer)

03-25-2008, 05:48 PM	#14
Makahveli Elite Explorer Denver, CO '92 Sport and AMG 300CE Join Date: Jul 2002 Posts: 942 Vehicle Specs	I wish I knew how to read the chart __________________ 305/40r22 Nittos, KMC Rims, K&N, Granatelli MAF, BBK TB, Borla muffler & headers, Magnaflow Cat, 4" lift (Assorted Parts), 2 15" Eclipse Subs+Amps, 4.56 gear ratios, SCT 5 Program Chip, Warn Hubs, Paxton Supercharger SN2000, Port & Polished 95TM Heads+Lower Intake, 422 Cam, 30lbs Injectors, Snow Water Methanol Kit, Ready to Race!!! IF YOU GOTTA BE A MONKEY BE A GORILLA

04-05-2008, 04:39 PM	#15
ktford Wannabe Elite Explorer Brisbane Australia 2005 XLT & '04 XLT Join Date: Apr 2006 Posts: 220 Vehicle Specs	I changed my stock system from behind the pre-cats, I replaced it all with dual 2.25" including 2 str8 thru mufflers, then a Y into single 3" before the diff. It is a bit noisier but I've picked up about 3.5 m.p.g. which is pretty awesome. I expect that will improve a fraction tomorrow as the two small exhaust leaks since installation in September as I performed the surgery on my back in my shed will be removed down at the local muffler shop. Including the work tomorrow it'll have cost me about $250.oo as I already owned the mufflers from off of my previous Ford Scotty __________________ Purchased last new V8 X to be brought down under, then got an '04 to park beside it, cause two V8's are better than 1 Missing my 365rwhp turbo Falcon like crazy

04-05-2008, 04:57 PM	#16
toypaseo Flunked daycare outside shovelling snow ................ 96 XLT ™ Join Date: Jan 2003 Posts: 5,306 Vehicle Specs	I have a Dynomax Ultraflo on my Paseo I have the stock muffler on my Explorer __________________ Kent - 1996 XLT - Hypertech Programmer, Gibson Catback, K&N FIPK, Alpine V12 MRV-100M, 8" round 2ohm Kicker Solobaric 1992 Toyota Paseo - Tein Super Street coilovers, Whiteline swaybars 22MM(F) 20MM(R), Prothane endlinks & mounts, VVR poly control arm bushings, K&N drop-in, Dynomax Ultraflo, Gibson stainless tip, Pirelli Winter Carving Edge(F) Kumho HP4 716(R) on steelies

04-06-2008, 10:33 PM	#17
Afboy143 Wannabe Elite Explorer Tampa,FL 1999 Ford Explorer Sport Join Date: Sep 2003 Posts: 2,611 Vehicle Specs	Here's a little something I found tonight. Muffler flow chart. Coming from http://www.allfordmustangs.com/forum...lowmaster.html Enjoy Muffler Flow Comparison Chart Shown below are competitive mufflers versus DynoMax Ultra-Flo SS and Race Magnum Welded models. For Powertech Index cold-flow testing, the pressure drop across the muffler is held at 20.3" H2O and the flow rate (scfm) is recorded. MODEL (Flow Rate- @ 20.3" H2O) Muffler Inlet Size + Edelbrock 5501 492 scfm 2.25" $ Flowmaster 42440 483 scfm 2.25" Race Magnum Welded 17216 711 scfm 2.25" + Edelbrock 5511 579 scfm 2.50" $ Flowmaster 42540 352 scfm 2.50" Ultra-Flo SS 17263 1133 scfm 2.50" Race Magnum Welded 17218 1000 scfm 2.50" # Borla 40600 836 scfm 2.50" + Edelbrock 5505 708 scfm 3.00" $ Flowmaster 43040 392 scfm 3.00" Ultra-Flo SS 17296 2200 scfm 3.00" Race Magnum Welded 17220 2200 scfm 3.00" # Borla 40450 1400 scfm 3.00" # Borla 40575 1100 scfm 3.00" @ Edelbrock 5535 562 scfm 3.50" $ Flowmaster 435409 576 scfm 3.50" Ultra-Flo SS 17268 2200 scfm 3.50" Race Magnum Welded 17224 2200 scfm 3.50" # Borla 40615 854 scfm 3.50" @ Edelbrock 5537 1400 scfm 4.00" * Flowmaster 54040-10 634 scfm 4.00" Race Magnum Welded 17225 2600 scfm 4.00" # Borla 40741 1450 scfm 4.00" + Edelbrock General Application Series @ Edelbrock Victor Series Race $ Flowmaster 40 Series ( 2 Chamber) * Flowmaster Delta Force Race Series # Borla XR-1 Racing Series (Round or Oval) __________________ ...Mods: Black Magic Electric Fan 150, Diamond Cuts retrofitted with E46 BMW projectors, Full Custom 2.5" Flowmaster Super 40 Exhaust , Custom Spectre Intake w/ AMSOil Filter, Henson Performance 93 Octane Street Tune, Ported and Shafted TB, Full Header-Wrapped 2.5" Off-road Y-Pipe, C&L MAF, 1.5" Wheel Spacers, R1Concepts Drilled and Slotted Rotors

05-18-2008, 10:18 AM	#18
Jakee Elite Explorer Huntsville, Texas 01 Sport Join Date: May 2006 Posts: 2,814 Vehicle Specs (Original Poster)	Someone showed me where these charts came from. Check it out. http://www.mustang50magazine.com/tec...ler/index.html __________________ STS turbo charged

05-26-2008, 08:03 PM	#19
Afboy143 Wannabe Elite Explorer Tampa,FL 1999 Ford Explorer Sport Join Date: Sep 2003 Posts: 2,611 Vehicle Specs	More info on the chart http://forums.performanceyears.com/f...57&postcount=1 __________________ ...Mods: Black Magic Electric Fan 150, Diamond Cuts retrofitted with E46 BMW projectors, Full Custom 2.5" Flowmaster Super 40 Exhaust , Custom Spectre Intake w/ AMSOil Filter, Henson Performance 93 Octane Street Tune, Ported and Shafted TB, Full Header-Wrapped 2.5" Off-road Y-Pipe, C&L MAF, 1.5" Wheel Spacers, R1Concepts Drilled and Slotted Rotors

07-07-2008, 08:23 PM	#20
staubjw Wannabe Elite Explorer Frederick, MD '03 eddie bauer Join Date: Jul 2008 Posts: 4 Vehicle Specs	Is it at all possible to run dual exhaust in a 2003 ford explorer eddie bauer 4.6L? Including two cats and mufflers? I Have had my explorer for a little over a year and i have been slowly adding things to help boost performance and HP. I have already purchased a set of headers and 1 high flow cat and 1 flowmaster 40, is it at all possible to install 2 cat and 2 mufflers? Im not sure if there is enough room under there, or if it would even be worth it. I was also given a set of underdrive pulleys form a friend of mine and they were origionally for a F-150. The packaging says that it will work for 4.6 thru 5.4 Liter. Will they work for my Explorer?